Home / 881,812.20-1,323,236.70-320,903.40

Finding the Fourth Proportional to 881,812.20, 1,323,236.70 and 320,903.40

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Solution

The fourth proportional to 881,812.20, 1,323,236.70 and 320,903.40 is: 481,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,812.20 : 1,323,236.70 = 320,903.40 : x
  2. Step 2: Convert to fraction form
    881,812.20/1,323,236.70 = 320,903.40/x
  3. Step 3: Cross multiply
    881,812.20x = 1,323,236.70 × 320,903.40
  4. Step 4: Simplify right side
    881,812.20x = 424,631,156,034.78
  5. Step 5: Solve for x
    x = 424,631,156,034.78/881,812.20
  6. Step 6: Final answer
    x = 481,543.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.